ALEXANDRIA, Va., June 19 -- United States Patent no. 12,336,020, issued on June 17, was assigned to FUJITSU Ltd. (Kawasaki, Japan).

"Random access method and apparatus and communication system" was invented by Yang Lu (Beijing), Jian Zhang (Beijing) and Qinyan Jiang (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A random access method and apparatus and a communication system. The apparatus includes a first processor circuit, the first processor circuit being configured to: receive resource configuration of contention-free random access, the resource configuration of contention-free random access comprising resource configuration of second type contention-free random access (CFRA); and perform a seco...